The short answer
A leaking BHCDW machine narrows quickly once you know when the water appears. During fill points at the supply connection; during the wash at the door seal; during drain at the hose or the waste; at rest at a fitting under standing pressure.
What you observe
- Water appears only while the machine fills — The supply side is pressurised only then, so a fitting or the inlet valve is the cause.
- Water at the front, under the door — The door seal, the latch or the loading. Nothing behind the machine is involved.
- Foam rather than clear water — Too much detergent, or the wrong product. Suds escape past seals that water never would.
- Water appears only while the machine empties — The drain hose, its connection or the waste backing up.
Causes, most likely first
- The door seal, or a door that is not latching square — First on this family. The seal runs the whole way round a door that is opened and loaded constantly, and a strand of debris on it, or a latch that has drifted, puts water on the floor at the front on every wash.
- Excess detergent, or the wrong product entirely — Suds climb past seals that water never reaches. Anything that is not dishwasher detergent will do this on the first cycle it is used.
- Loading that redirects the spray at the door — Second, and the one owners least expect. A tall tray or a pan set against the door turns the spray straight at the seal, and the same machine leaks on one load and not the next.
- The drain hose or its connection at the waste — A clamp that has loosened or a hose that has been crushed behind the machine leaks only while the pump runs, which is a clean diagnostic split.
Check in this order
- Dry the inlet fitting and watch it with the tap open and the machine off — A weep under standing pressure shows within minutes and needs no cycle at all.
- Dry everything, put paper at the front and back, and run a cycle — Front and back are two different faults.
- Rerun the same wash with the tall items moved away from the door — Separates loading from a seal fault without replacing anything.
- Rerun with the correct dose of dishwasher detergent only — Last of the free checks, and it removes foam from the list entirely.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Water on the floor around a built-in appliance is exactly what a breaker exists for - isolate at the breaker rather than reaching behind a wet machine for a plug.
Models in the BHCDW family — The models this page covers, as the product spine lists them. This family is a single model, so there is no variant to rule out before you start.
Reference| Model number | Family key |
|---|---|
| BH-CDW1 | blitzhome:dishwasher:bhcdw |
When to call
Call straight away if water is reaching a cabinet base, flooring or a floor below - a built-in machine hides its leak until the damage is done. Shut the supply tap in the meantime, because an inlet-side leak does not stop when the machine does.
Other faults on this family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
